i pulled this info for you out of another thread this info was provided by 2kg4u it will help you get the seat out safely without bag deployment
If you work on your seat, you must disable the airbag system, and this is not a matter of disconnecting the battery. There is a fuse you have to pull in the fuse box under the rear seat, and you have to disconnect 4 yellow hard shell electical connectors that have safety locks. One is under the driver side knee bolster (plastic panel in front of your knees) and is close to and to the right of the steering column. The second connector is under the passenger knee bolster, a little to the right of the center of the panel. The third connector is below the driver seat, and the fourth beneath the passenger seat.
If you are going to pull your seat cushion or the seat back apart, I recommend you pull the seat out of the car. It is actually the easiest part of the job, and makes working on the seat components much easier.
The seat cushion is held to the seat frame by two nuts under the front edge. Remove those, lift the front of the cushion and it will come free. Clearly mark each side of each wire connector you disconnect to make sure you know where they connect back. The leather seat cover is held on by plastic U channels that hook to the seat plastic foundation. Once you get to this point you will see how to get it apart. When you put it back together, make sure you line up the velcro strips, and push down on them as you are putting the cover back on. If you don't do that the seat cushion won't have the proper profile when you put it back together.
The seat back is a little more tricky. Start with the zippers and everything is pretty straight forward from there. The tricky part is getting the leather cover back on. It is basically a bag that fits over the seat frame, and is a very tight fit. Take your time. It also helps to heat the leather cover up before you install it.
2005 Pontiac Bonneville GXP
2008 Chevy Impala 3LT 3.9L (9C3)
2000 SSXP (retired) all over the country in a million pieces